Multi-link wireless channel sounder and multi-link wireless channel measurement method thereof

Abstract

A multi-link wireless channel sounder is provided. The multi-link wireless channel sounder includes a multi-input multi-output (MIMO) antenna unit, a transmitter (TX) signal processing unit configured to transmit via the MIMO antennas one or more TX wireless channel signals to be transmitted via a wireless channel, a receiver (RX) signal processing unit configured to receive and process one or more RX wireless channel signals that are received from multiple links via the MIMO antenna unit, and a control unit configured to receive an operation mode selection signal that indicates a TX mode or an RX mode from a user and to control the TX signal processing unit or the RX signal processing unit to operate selectively in accordance with the operation mode selection signal.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)[0001]This application claims the benefit under 35 U.S.C. §119(a) of Korean Patent Application No. 10-2010-0131581, filed on Dec. 21, 2010, in the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes.BACKGROUND[0002]1. Field[0003]The following description relates to a mobile communication system, and more particularly, to a wireless channel sounder that analyzes the characteristics of the wireless channels, and that performs spatial channel modeling based on the results of the analysis.[0004]2. Description of the Related Art[0005]Mobile communication technologies are being evolved to combine transmission diversity and multi-user diversity and to provide cooperative communications to increase the transmission capacity of mobile communication systems. Cooperative mobile communication is a technique for the design and embodiment of next-generation mobile communication networks i...

AI Technical Summary

Benefits of technology

This patent text describes a device and method for measuring wireless channels. The device can simultaneously measure multiple channels, reducing the time and cost compared to traditional methods. Additionally, the device improves the accuracy and reliability of the wireless channel measurement data. Overall, this technology allows for more efficient and reliable wireless channel measurement.

Problems solved by technology

However, there is a limit in measuring all the links between BSs, MSs, and RSs in a next-generation mobile communication network where complex multiple links exist by using a conventional channel sounder.

However, conventionally, wireless channel measurement may need to be performed as many times as there are links to be measured, which is extremely inconvenient, time-consuming and costly.

That is, to collect wireless channel measurement data from a complex mobile communication network and model the characteristics of wireless channels, each link in the complex mobile communication network may need to be measured more several times. However, this type of wireless channel measurement may not be suitable for collecting wireless channel measurement data from an environment in which the characteristics of wireless channels continue to vary.

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